Rhythm disturbances in the form of atrial tachycardia in a female patient with polymyositis--a case report.

The presented case report describes a female patient suffering from polymyositis, in whom atrial tachycardia and depressed left ventricular function were diagnosed. Atrial tachycardia was confirmed by electrophysiological study, and the radiofrequency ablation failed to restore sinus rhythm. This case is an example of the tachy phase in brady-tachy syndrome. The patient is evaluated cardiologically on a regular basis with emphasis on bradycardia and asystole episodes because she was symptomatic for many years.